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Re: Hairline Crack in LM7 5.3 Block
The epoxy is a waist of time imho. I had a 6.9 Ford diesel delivery truck and a 2001 Duramax that both developed coolant leaks due to failing head gaskets or?
I used the Bar"s Leaks product and it fixed both and did not plug up the radiator or cause any cooling problems.
The main thing is you need to follow the instructions on the bottle to a T.
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